Technical Data Sheet
High Performance 9 kHz to 7.1 GHz
Handheld Spectrum Analyzer
MS2721B
Spectrum Master™
Introduction
Continuous frequency coverage from 9 kHz to 7.1 GHz gives the wireless professional the performance needed
for the most demanding measurements in harsh RF and physical environments.
Whether you need spectrum monitoring, AM and FM broadcast proofing, WiFi and WiFi5 installation and testing,
RF and microwave signal measurements or cellular signal measurements, the MS2721B Spectrum Master is the tool to
make your job easier and more productive.
High Performance Highlights
• 9 kHz to 7.1 GHz Input
• 1 Hz to 3 MHz RBW Range
• Very Low Phase Noise
(–100 dBc/Hz Maximum at 10 kHz
offset at 100 kHz to 7.1 GHz)
• Built-in AM/FM/SSB Demodulator
• Built-in Preamplifier
• 65 dB Step Attenuator
• Input Protected to 20 Watts
• True RMS Detection
• 2+ Hours of Battery Life
• 3.1 kg (<6.9 lbs)
• 3G Modulation options
• Tracking Generator option
• GPS Receiver option
• Quasi-peak detector and CISPR
bandwidths
The Anritsu MS2721B is the most advanced ultra-portable spectrum analyzer
on the market, featuring unparalleled performance at a modest price.
Features and Options
Functions
Multiple Marker: Display up to six markers on screen. Each marker includes
a delta marker, effectively allowing up to 12 markers on screen. The user may
lso set marker 1 to be the reference for 6 delta markers.
a
Marker Table: Display a table of up to six marker frequency and amplitude
values plus delta marker frequency offset and amplitude.
Upper/Lower Limit
Fixed and segmented: Each upper and lower limit can be made up of
etween one and 40 segments.
b
Smart Measurements
Occupied Bandwidth: Measures 99% to 1% power channel of a signal.
Channel Power: Measures the total power in a specified bandwidth.
C/I: Measures carrier to interference ratio.
CPR:Measures power levels in the channels immediately above and below
A
the center channel.
Field Strength: Uses antenna calibration tables to measure dBm/meter
or dBmV/meter.
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Specifications
Frequency
Frequency Range: 9 kHz to 7.1 GHz
Tuning Resolution: 1 Hz
Frequency Reference:
±1 ppm per 10 years
Aging:
Accuracy: ±0.3 ppm (25º C ± 25º C) + aging
Frequency Span: 10 Hz to 7.1 GHz plus 0 Hz (zero span)
Span Accuracy: Same as frequency reference accuracy
Sweep Time:
Zero span:
Spans >0 Hz: Sweep time is automatically optimized.
Can be manually increased
Sweep Time Accuracy: ±2% in zero span
Sweep Trigger: Free run, Single, Video, External
Resolution Bandwidth: (–3 dB) 1 Hz to 3 MHz in 1-3 sequence ±10%,
200 Hz, 9 kHz, 120 kHz when quasi-peak detector selected,
10 MHz demodulation bandwidth
Video Bandwidth: (–3 dB) 1 Hz to 3 MHz in 1-3 sequence
SSB Phase Noise:
Offset from carrier Max
10, 20 and 30 kHz –100 dBc/Hz
100 kHz
Amplitude
Measurement Range: DANL
Display Range: 1 to 15 dB/div in 1 dB steps. Ten divisions displayed.
Amplitude Units:
Log Scale Modes:
Linear Scale Modes: nV, µV, mV, V, kV, nW, µW, mW, W, kW
Attenuator Range: 0 to 65 dB
Attenuator Resolution: 5 dB steps
Absolute Amplitude Accuracy:
Power levels:
≥–50 dBm, ≤35 dB input attenuation
9 kHz to ≤10 MHz
>10 MHz to 4 GHz
>4 to 7.1 GHz ±1.75 dB
40 to 55 dB input attenuation
9 kHz to ≤10 MHz ±1.5 dB
>10 MHz to 4 GHz
>4 to 6.5 GHz ±1.75 dB
>6.5 to 7.1 GHz ±2 dB
10 ms to 600s
–102 dBc/Hz
to +30 dBm
dBm, dBV, dBmv, dBµV
±1.5 dB
±1.25 dB
±1.75 dB
0 to 65 dB input attenuation
6
9 kHz to ≤10 MHz ±1.5 dB
10 MHz to 6.5 GHz ±1.75 dB
>
>6.5 to 7.1 GHz ±3 dB
reamplifier on, 0 or 10 dB input attenuation
P
100 kHz to 4 GHz ±1.5 dB
>4 to 7.1 GHz ±1.75 dB
Second Harmonic Distortion
(0 dB input attenuation, –30 dBm input):
0.05 to 1.4 GHz –50 dBc
>1.4 to 2 GHz –70 dBc
>2 GHz –80 dBc
Third Order Intercept (TOI):
–20 dBm tones 100 kHz apart, –20 dBm Ref level,
(
0 dB input attenuation, preamplifier off)
Frequency Min
600 MHz +7 dBm
3.5 GHz +9 dBm
Frequency Typical
50 MHz to 300 MHz >8 dBm
>300 MHz to 2.2 GHz 10 dBm
>2.2 to 2.8 GHz >15 dBm
>2.8 to 4.0 GHz >10 dBm
>4.0 to 7.1 GHz >13 dBm
Dynamic Range 2/3 (TOI-DANL) in 1 Hz RBW:
600 MHz 95 dB min
3.5 GHz 96 dB min
Displayed Average Noise Level (DANL) in 1 Hz RBW:
Frequency Preamplifier On Preamplifier Off
Typical Max Typical Max
10 MHz to 1 GHz –163 –161 –140 –137
>1 GHz to 2.2 GHz –160 –159 –136 –133
>2.2 to 2.8 GHz –156 –153 –130 –126
>2.8 to 4.0 GHz –160 –159 –139 –136
>4.0 to 7.1 GHz –158 –154 –131 –127
(0 dB input attenuation, RMS detection, Reference level = –20 dBm for
preamplifier off and –50 dBm for preamplifier on)
Note: Discrete spurious signals are not included in the measurement of DANL
as they are covered by the residual spurious specification.
Equivalent Noise Figure, 23º C:
(Preamplifier on, 0 dB input attenuation)
ypical
Frequency
10 MHz to 1 GHz 1
>1 GHz to 2.2 GHz 14 dB
>2.2 to 2.8 GHz 18 dB
>2.8 to 4.0 GHz 14 dB
>4.0 to 7.1 GHz
Input-Related Spurious:
(–30 dBm input, 0 dB input attenuation, Span <1.7 GHz)
–70 dBc typical –60 dBc max
Residual Spurious:
(Preamplifier on, RF input terminated, 0 dB input attenuation)
–100 dBm max
(Preamplifier off, RF input terminated, 0 dB input attenuation)
–90 dBm max**, 100 kHz to <3200 MHz
–84 dBm max**, 3200 to 7100 MHz
Exceptions:
**
Frequency Max Spur Level (Typical)
250, 300, and 350 MHz
~4010 MHz –80 dBm (–90 dBm)
~5084 MHz –70 dBm (–83 dBm)
~5894 MHz
~7028 MHz
T
1 dB
16 dB
–85 dBm
–75 dBm (–87 dBm)
–80 dBm (–92 dBm)
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